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Contract OI history

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Mar 19, 2027 EXPIRATION

PFE $20.00 Put

PFE270319P00020000

Latest saved OI6,855Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
PFE $20.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6,8563,4280 2026-10-02: 6,856 OI2026-10-05: 6,856 OI2026-10-06: 6,856 OI2026-10-07: 6,856 OI2026-10-08: 6,856 OI2026-10-09: 6,856 OI2026-10-13: 6,856 OI2026-10-14: 6,856 OI2026-10-15: 6,856 OI2026-10-16: 6,856 OI2026-10-21: 6,855 OI2026-10-23: 6,855 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

PFE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6,8550
Oct 21, 20266,855-1
Oct 16, 20266,8560
Oct 15, 20266,8560
Oct 14, 20266,8560
Oct 13, 20266,8560
Oct 09, 20266,8560
Oct 08, 20266,8560
Oct 07, 20266,8560
Oct 06, 20266,8560
Oct 05, 20266,8560
Oct 02, 20266,856No prior observation